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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/history/history_tab_helper.h"
#include "chrome/browser/history/history.h"
#include "chrome/browser/history/top_sites.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/render_messages.h"
#include "content/browser/tab_contents/navigation_details.h"
#include "content/browser/tab_contents/navigation_entry.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/browser/tab_contents/tab_contents_delegate.h"
#include "content/browser/tab_contents/title_updated_details.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/notification_details.h"
#include "content/public/common/frame_navigate_params.h"
HistoryTabHelper::HistoryTabHelper(TabContents* tab_contents)
: TabContentsObserver(tab_contents),
received_page_title_(false) {
registrar_.Add(this, content::NOTIFICATION_TAB_CONTENTS_TITLE_UPDATED,
content::Source<TabContents>(tab_contents));
}
HistoryTabHelper::~HistoryTabHelper() {
}
void HistoryTabHelper::UpdateHistoryForNavigation(
scoped_refptr<history::HistoryAddPageArgs> add_page_args) {
HistoryService* hs = GetHistoryService();
if (hs)
GetHistoryService()->AddPage(*add_page_args);
}
void HistoryTabHelper::UpdateHistoryPageTitle(const NavigationEntry& entry) {
HistoryService* hs = GetHistoryService();
if (hs)
hs->SetPageTitle(entry.virtual_url(), entry.GetTitleForDisplay(""));
}
scoped_refptr<history::HistoryAddPageArgs>
HistoryTabHelper::CreateHistoryAddPageArgs(
const GURL& virtual_url,
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
scoped_refptr<history::HistoryAddPageArgs> add_page_args(
new history::HistoryAddPageArgs(
params.url, base::Time::Now(), tab_contents(), params.page_id,
params.referrer, params.redirects, params.transition,
history::SOURCE_BROWSED, details.did_replace_entry));
if (content::PageTransitionIsMainFrame(params.transition) &&
virtual_url != params.url) {
// Hack on the "virtual" URL so that it will appear in history. For some
// types of URLs, we will display a magic URL that is different from where
// the page is actually navigated. We want the user to see in history what
// they saw in the URL bar, so we add the virtual URL as a redirect. This
// only applies to the main frame, as the virtual URL doesn't apply to
// sub-frames.
add_page_args->url = virtual_url;
if (!add_page_args->redirects.empty())
add_page_args->redirects.back() = virtual_url;
}
return add_page_args;
}
bool HistoryTabHelper::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(HistoryTabHelper, message)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_PageContents, OnPageContents)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_Thumbnail, OnThumbnail)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void HistoryTabHelper::DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
// Allow the new page to set the title again.
received_page_title_ = false;
}
void HistoryTabHelper::DidNavigateAnyFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
// Update history. Note that this needs to happen after the entry is complete,
// which WillNavigate[Main,Sub]Frame will do before this function is called.
if (!params.should_update_history)
return;
// Most of the time, the displayURL matches the loaded URL, but for about:
// URLs, we use a data: URL as the real value. We actually want to save the
// about: URL to the history db and keep the data: URL hidden. This is what
// the TabContents' URL getter does.
scoped_refptr<history::HistoryAddPageArgs> add_page_args(
CreateHistoryAddPageArgs(tab_contents()->GetURL(), details, params));
if (!tab_contents()->delegate() ||
!tab_contents()->delegate()->ShouldAddNavigationToHistory(
*add_page_args, details.type))
return;
UpdateHistoryForNavigation(add_page_args);
}
void HistoryTabHelper::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(type == content::NOTIFICATION_TAB_CONTENTS_TITLE_UPDATED);
TitleUpdatedDetails* title =
content::Details<TitleUpdatedDetails>(details).ptr();
if (received_page_title_)
return;
// |title->entry()| may be null.
if (title->entry()) {
UpdateHistoryPageTitle(*title->entry());
received_page_title_ = title->explicit_set();
}
}
void HistoryTabHelper::OnPageContents(const GURL& url,
int32 page_id,
const string16& contents) {
// Don't index any https pages. People generally don't want their bank
// accounts, etc. indexed on their computer, especially since some of these
// things are not marked cachable.
// TODO(brettw) we may want to consider more elaborate heuristics such as
// the cachability of the page. We may also want to consider subframes (this
// test will still index subframes if the subframe is SSL).
// TODO(zelidrag) bug chromium-os:2808 - figure out if we want to reenable
// content indexing for chromeos in some future releases.
#if !defined(OS_CHROMEOS)
if (!url.SchemeIsSecure()) {
HistoryService* hs = GetHistoryService();
if (hs)
hs->SetPageContents(url, contents);
}
#endif
}
void HistoryTabHelper::OnThumbnail(const GURL& url,
const ThumbnailScore& score,
const SkBitmap& bitmap) {
Profile* profile =
Profile::FromBrowserContext(tab_contents()->browser_context());
if (profile->IsOffTheRecord())
return;
// Tell History about this thumbnail.
history::TopSites* ts = profile->GetTopSites();
if (ts) {
gfx::Image thumbnail(new SkBitmap(bitmap));
ts->SetPageThumbnail(url, &thumbnail, score);
}
}
HistoryService* HistoryTabHelper::GetHistoryService() {
Profile* profile =
Profile::FromBrowserContext(tab_contents()->browser_context());
if (profile->IsOffTheRecord())
return NULL;
return profile->GetHistoryService(Profile::IMPLICIT_ACCESS);
}
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